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Commit c1ac094d authored by Naveen N. Rao's avatar Naveen N. Rao Committed by Arnaldo Carvalho de Melo
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doc: trace/kprobes: add information about NOKPROBE_SYMBOL 



Update kprobe tracer documentation to also mention that
NOKPROBE_SYMBOL() and nokprobe_inline add symbols to the kprobes
blacklist.

Signed-off-by: default avatarNaveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/d924e20de099579ace4286e610304f054cd798db.1488991670.git.naveen.n.rao@linux.vnet.ibm.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 44ca9341

Documentation/trace/kprobetrace.txt

+3 −2
Original line number Diff line number Diff line
@@ -8,8 +8,9 @@ Overview 
--------

These events are similar to tracepoint based events. Instead of Tracepoint,

this is based on kprobes (kprobe and kretprobe). So it can probe wherever

kprobes can probe (this means, all functions body except for __kprobes

functions). Unlike the Tracepoint based event, this can be added and removed

kprobes can probe (this means, all functions except those with

__kprobes/nokprobe_inline annotation and those marked NOKPROBE_SYMBOL).

Unlike the Tracepoint based event, this can be added and removed

dynamically, on the fly.



To enable this feature, build your kernel with CONFIG_KPROBE_EVENTS=y.